In Washington, President Obama announced that the G8 leaders have joined the new Climate and Clean Air Coalition for Reducing Short Lived Climate Pollutants. Short-lived climate pollutants include black carbon soot, methane, and hydrofluorocarbons, which are factory-made gases used in refrigeration and air conditioning and the fastest growing climate pollutant in the U.S. They also expressed strong support to implement the Cancun agreements and the Durban Platform, which calls for the adoption of a new climate protocol by 2015, to come into force by 2020.